Factor Calculator

Factors of 1144

The factors of 1144 are 1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, and 1144. In total, 1144 has 16 factors. Its prime factorization is 2³ × 11 × 13, and the sum of all its factors is 2520.

All factors of 1144

Here are all 16 factors of 1144, listed from smallest to largest.

1248111322264452881041432865721144

Factor pairs of 1144

These 8 pairs of whole numbers each multiply to give 1144.

1 × 1144 = 1144
2 × 572 = 1144
4 × 286 = 1144
8 × 143 = 1144
11 × 104 = 1144
13 × 88 = 1144
22 × 52 = 1144
26 × 44 = 1144

Prime factorization of 1144

Dividing 1144 by the smallest prime at each step gives its prime factorization:

1144 ÷ 2 = 572
572 ÷ 2 = 286
286 ÷ 2 = 143
143 ÷ 11 = 13
13 ÷ 13 = 1
Result: 1144 = 2 × 2 × 2 × 11 × 13 = 2³ × 11 × 13

The distinct prime factors of 1144 are 2, 11, 13. To factorize any other number, use the prime factorization calculator.

Factor tree of 1144

A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.

Factor tree of 114411442572228621431113
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 1144

Number of factors16
Sum of factors2520
Sum of proper factors1376
Prime factorization2³ × 11 × 13
Prime or composite?Composite
Even or odd?Even
Perfect square?No
Perfect cube?No
ClassificationAbundant

What makes 1144 interesting

  • 1144 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 8 different ways.
  • 1144 is an abundant number: its proper factors sum to 1376, which is 232 more than 1144 itself.
  • 1144 has 3 distinct prime factors (2, 11, 13), which is why it has so many divisors.

How to find the factors of 1144 yourself

Divide 1144 by each whole number starting from 1. Whenever the division leaves no remainder, both the divisor and the quotient are factors. You only need to test up to √114433.82, because every factor above that pairs with one below it.

1144 ÷ 1 = 1144
1144 ÷ 2 = 572
1144 ÷ 4 = 286
1144 ÷ 8 = 143
1144 ÷ 11 = 104
1144 ÷ 13 = 88
1144 ÷ 22 = 52
1144 ÷ 26 = 44

Reading both columns gives every factor: 1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144. The factor calculator does this automatically for any number.

Frequently asked questions about 1144

What are the factors of 1144?

The factors of 1144 are 1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, and 1144. That is 16 factors in total, counting both 1 and 1144.

Is 1144 a prime number?

No, 1144 is not prime — it is a composite number with 16 factors. A prime number has exactly two factors, but 1144 is also divisible by 2.

What is the prime factorization of 1144?

The prime factorization of 1144 is 2³ × 11 × 13. Written out in full: 2 × 2 × 2 × 11 × 13 = 1144. Its distinct prime factors are 2, 11, 13.

What two numbers multiply to give 1144?

There are 8 pairs of whole numbers that multiply to 1144: 1 × 1144, 2 × 572, 4 × 286, 8 × 143, 11 × 104, 13 × 88, 22 × 52, 26 × 44.

What is the sum of the factors of 1144?

Adding all the factors of 1144 together gives 2520. Excluding 1144 itself, the proper factors sum to 1376.

Is 1144 a perfect square?

No, 1144 is not a perfect square. There is no whole number that multiplies by itself to give 1144. The nearest perfect squares are 1089 and 1156.

What is the largest factor of 1144 other than itself?

The largest factor of 1144 apart from 1144 itself is 572, since 1144 ÷ 572 = 2.

How many factors does 1144 have?

1144 has 16 factors: 1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, and 1144. You can verify this from the prime factorization 2³ × 11 × 13: add 1 to each exponent and multiply, giving 4 × 2 × 2 = 16.

Explore more

Try another number in the factor calculator, break 1144 down further with the prime factorization calculator, or compare 1144 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.